1997 Johnson Evinrude "EU" 90 thru 115 90 CV Service Manual, P/N 507267, Page 217Get this manual
Installation
1Apply OMC Adhesive sealant to lower exhaust housing seal inner surfacesPosition two new seals on housingApply OMC Triple-Guard grease to seal outer surfaces and position housing on jet drive housing2Slide jet housing into place, making sure driveshaft engages crankshaft, water tube enters water pump, and lower inner exhaust housing does not slip out of position
mhousing Apply OMCscrews and rear Compound to threads of rn 3retaining Gasket Sealing exhaust housing screwjet
Install two 38 -16 2112 inscrews in forward holesandtwo 38 -16 inscrews in rear holes Install rear spacer and screwTorque all screws to 18-20 ftIbs(24-27 Nm)4Install key, bushing, shims, tab-washer, and nut on driveshaftBe sure shims are placed in original positionRefer to Impeller Clearance Adjustment
rn 5Whentoproper ftIbs(22-24 Nm)is achieved, torque clearance adjustment impeller nut 16-18